The Blueair Classic 270E Slim takes the Blueair Classic 200/300 series Particle filter (part 201PF) as its filter; replace it every 6 months; Australian sellers list it from A$45.99 as of 5 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your air purifier
Blueair Classic 270E Slim
Air purifier
Confirmed against Blueair's listConfirmed against Blueair Australia's compatibility list
Not yours? ChangeSave it · remind me every 6 months
Takes the 201PF filter
Classic 200/300 series Particle filter · replace every 6 months · check the code printed on your old filter before ordering.
Your air purifier
Air purifier
Confirmed against Blueair's listConfirmed against Blueair Australia's compatibility list
Takes the 201PF
Filter · every 6 months · check the code on your old filter.
Other Blueair air purifiers that take the 201PF
GenuineGenuine Blueair
$79.99
Blueair Au · 20 OctLowest genuine · Blueair Au · checked 20 Oct
CompatibleCompatible option
$45.99
Amazon AU · 5 OctAmazon AU · checked 5 Oct
Check sellerCheck seller details
Genuine: made by Blueair. Compatible: another brand. Check certification on the seller's page.Genuine is made by Blueair. Compatible is made by another brand. Check the seller's certification details before choosing.
Lowest compatibleLowest compatible price · $45.99
Amazon AU. Compare with genuine below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
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AUD, before delivery. Each price shows when it was checked.
Compatible options
1 seller
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How long it lasts
Usually every 6 months. The filter light is a reminder, not a water-quality sensor.
After replacing: Press and hold the button until the filter light goes out (about 5 seconds).
Flow slows and taste drops off as the filter fills up. Changing on time is the whole point.
Not due yet?
Get a nudge when your filter is due — it's every 6 months. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the filter in your Blueair Classic 270E Slim
Watch the guide or follow the steps.
- 1Switch the purifier off and unplug it.
- 2Grip the edges of the front grille and pull it straight off (it is held by magnets). On 400/500/600 units do the same at the back.
- 3Slide the old flat filter(s) out and slide the new ones in the same way round, pleats facing out.
- 4Push the grilles back on, plug in, and hold the button until the filter light goes out.
Every number this part goes by
- Retail name:
- 201 PF
- Retail name:
- 201PF
- Retail name:
- Classic 200 particle filter
Sellers list any of these; they are the same part.
About your Blueair Classic 270E Slim
Blueair air purifier, air purifier — Classic 200. Its filter is the Classic 200/300 series Particle filter, part 201PF, changed every 6 months.
Also in this air purifier: Blueair Classic 200 series DualProtection filter (every 6 months).
Where the model number is: The model number is on the rating label on the bottom or back of the purifier; the old filter usually has its own code printed on the frame.
Fits these 7 Blueair models
Common questions
- Which filter fits the Blueair Classic 270E Slim?
- The Blueair Classic 270E Slim takes the Blueair Classic 200/300 series Particle filter (part 201PF). Compatible filters made to the same specification also fit.
- How often should I replace the filter in my Blueair Classic 270E Slim?
- Every 6 months. Flow slows and performance drops off as the filter fills up, so it's worth doing on time.
- Where can I buy the 201PF in Australia?
- We track 2 Australian sellers for the 201PF; the lowest listed price when we last checked was A$45.99 at Amazon AU. Prices are re-checked daily and dated on this page.
- How do I fit the 201PF in a Blueair Classic 270E Slim?
- No tools, a few minutes: 4 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- The fan works harder for less airflow, and the carbon layer stops taking smells out well before the filter looks dirty.
- How do I reset the filter light?
- Press and hold the button until the filter light goes out (about 5 seconds).
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